However, the moment that Wilkes enters, it becomes clear that his personality has both the backbone and the anarchic razzle-dazzle to sustain the evening. Structurally, Richard O'Brien's musical climaxes far too early, just after Frank seduces both Brad and Janet - a fault considerably alleviated by Wilkes's insolent repartee, large-limbed confidence, and ability to dominate the theatre with his sexual magnetism and a fruity voice that Robbie Williams saw worthy to include on his album Swing When You're Winning.